Results 31 to 40 of about 4,638,476 (294)

The Effect of Bridge Orientation in Casting Machine on the Castability and Quality of Base Metal Castings [PDF]

Journal of Dental Materials and Techniques, 2013
Introduction: The aim of this study was to evaluate the effect of bridge orientation in casting machine on castability and quality of base metal castings.
Azamsadat Madani, Ahmad Ghahremanlu, Mohammad Reza Sabooni, Foad Shahabian, Hamzeh Harati   +4 more
doaj  

Reduction of energy consumption and GHGs emission in investment casting process by application of a new casting method [PDF]

, 2012
In conventional investment casting process of aluminium alloys for the application of the aerospace industry, to assure the quality of the final casting, usually the foundry uses large runner system which results in low yield, high energy consumption and
Jolly, Mark R., Zhang, Binxu, Xiaojun Dai, Mark Jolly, Dai, Xiaojun J., Btnxu Zhang   +5 more
core   +1 more source

Evaluation of marginal adaptation of CoCrMo metal crowns fabricated by traditional method and computer-aided technologies

Journal of Dental Sciences, 2019
Background/purpose: The purpose of this study was to evaluate the marginal gaps of dental restorations manufactured using conventional loss wax and casting, computer-aided design/computer-aided manufacturing (CAD/CAM), and 3D printing methods.
Hao-Sheng Chang, Yao-Te Peng, Wei-Lin Hung, Ming-Lun Hsu   +3 more
doaj   +1 more source

Different fabrication techniques of implant-supported prostheses

Brazilian Journal of Oral Sciences, 2019
Aim: This study evaluated the mechanical behavior of implant-supported crowns obtained by different fabrication technique after thermomechanical cycling.
Silas Monteiro Borges, Stephanie Francoi Poole, Izabela Cristina Maurício Moris, Aloísio Oro Spazzin, Adriana Cláudia Lapria Faria, Erica Alves Gomes   +5 more
doaj   +1 more source

Measurement of the accuracy of dental working casts using a coordinate measuring machine [PDF]

Vojnosanitetski Pregled, 2016
Background/Aim: Dental impressions present a negative imprint of intraoral tissues of a patient which is, by pouring in gypsum, transferred extraorally on the working cast.
Potran Michal, Štrbac Branko, Puškar Tatjana, Hadžistević Miodrag, Hodolič Janko, Trifković Branka   +5 more
doaj   +1 more source

Effect of full arch two scanning techniques on the accuracy of overdenture conventional and CAD/CAM Co-Cr bars

Saudi Dental Journal, 2022
Purpose: This work evaluates the internal and marginal adaptation of implant-assisted overdenture cobalt–chromium (Co–Cr) bars manufactured using conventional as well as CAD/CAM subtractive and selective laser melting (SLM) utilizing two scanning ...
Ali Alenezi, Mohammed Yehya, Mohamed Alkhodary   +2 more
doaj   +1 more source

Comparison of impression techniques and double pouring by dental cast’s accuracy

Brazilian Journal of Oral Sciences, 2019
Aim: This study compared impression techniques and double pouring by means of cast’s accuracy. Methods: For each patient (n=10), impressions from right maxillary canine to first molar were made with acrylic resin trays and vinyl-polysiloxane using one single-step, and four two-steps techniques: relief with poly(vinyl chloride) film; tungsten-carbide ...
Aion Mangino Messias, Stephania Caroline Rodolfo Silva, Filipe de Oliveira Abi-Rached, Raphael Freitas de Souza, José Maurício dos Santos Nunes Reis   +4 more
openaire   +3 more sources

Creating a Digital 3D Model of the Dental Cast Using Structure-from-Motion Photogrammetry Technique

International Journal of Online and Biomedical Engineering (iJOE), 2023
Photogrammetry is a technique used to obtain a reliable database of any physical object, by creating a digital 3d model using multiple photos taken at different angles around the object. Recently, several fields have used this technique to build digital 3D models, such as topography, architecture, engineering, and medicine.
Reem Al-Tameemi, Sadiq Hamandi, Akmam Al-Mahdi   +2 more
openaire   +2 more sources

Sex Identification Based on Tooth Crown Trait Analysis Among the Mongoloid Race

Pesquisa Brasileira em Odontopediatria e Clínica Integrada, 2022
Objective: To determine whether anterior and posterior tooth crown traits exhibit sexual dimorphism and identify traits characteristic to the Mongoloid race, especially among the Indonesian population.
Syifa Ahliya, Bambang Tri Hartomo, Angger Waspodo Dias Adrianto, Agoeng Tjahajani Sarwono, Elza Ibrahim Auerkari   +4 more
doaj  

In Vitro Study Comparing Retention of Custom Post and Cores Fabricated Using Conventional, CAD/CAM Milling and 3D-Printing Techniques

Applied Sciences, 2022
This study aimed to evaluate the differences in the retention of custom-cast non-precious post and cores (CCNPPCs) (control group), custom-milled titanium post and cores (CMTPCs), custom-printed titanium post and cores (CPTPCs), and custom-milled ...
Hatem Alqarni, Abdulaziz A. AlHelal, Rami Jekki, Mathew T. Kattadiyil, Mohammed E. Sayed, Saurabh Jain, Seyed Aliakbar Vahdati, Salem Dehom   +7 more
doaj   +1 more source